冰箱保藏菌种是菌种保藏方法中最简便、最常用的方法，它具有抑制菌种生长、延长菌种老化的作用。用此法保藏菌种虽然方法简便，但是，如果保藏方法不当，很容易造成菌种污染，导致菌种抗病性下降乃至造成出菇期病害的发生。我校近两年来一直对北方大棚平菇锈斑病即褐斑病的发 Fridge preservation strain is the easiest and most commonly used method of strain preservation, which has the effect of inhibiting the growth of bacteria and prolonging the strain aging. Although the method is simple and convenient to preserve the bacteria by this method, if the preservation method is improper, it is easy to cause the bacteria to pollute, resulting in the decrease of the disease resistance of the bacteria and even the occurrence of disease during the fruiting period. In the past two years, our school has been on the northern greenhouse plagues rust spot brown hair spots that hair